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week 6 checkpoint sci275_Appendix_E water resource challenges

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Axia College Material
Appendix E
Water Resource Challenges
Review Ch. 10 and 11 of your text, then complete the following:
Provide at least three freshwater and three ocean water resource challenges by filling in the
following table. Then, respond to the question that follows:
Freshwater Resource Challenge Description
Irrigation Irrigation is a constant battle on the
Colorado river causing the river to
dry up before entering back into the
ocean.
Water rights A battle over the water rights on the
upper and lower Missouri River is
ongoing; each area is trying to
protect their interests.
Future water supplies By 2025 it is estimated that 1/3 of
the population will live in areas
where there is not enough water for
drinking or irrigation.
Ocean Water Resource Challenge Description
Over fishing Because of the demand of the
human population, over fishing the
ocean has become a major problem.
Many commercial fish species are
severely depleted.
Offshore extraction of mineral and
energy resources.
Since the ocean floor and beneath
the floor hold valuable minerals,
countries want to extract them.
However, we cannot harvest the
minerals without affecting sea life.
Marine animals in trouble. The sea otter is one animal that has
been affected by other sea life
decline. The orcas have turned on
feeding on the sea otter since their
regular diet of seals and sea lions
have dropped in population.
SCI 275

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In 200 to 300 words, respond to the following: Choose one fresh or ocean water resource
challenge and describe in detail why the issue has become a problem and how human activities
have contributed to the problem.
The need to use water from rivers has risen drastically through the last few decades. This is
due to the increase in the human population. While the cities are growing they are in need for
potable water, the resources being used are the lakes and the rivers. While diverting some of the
water from rivers and lakes might not make a big difference, diverting almost all of it causes
devastating effects on everyone.
One good example of the diversion of water would be in Northern California. Located far north
in Shasta County is Lake Shasta, when it is full there is an estimated 365 miles of shore line. As
of June 3
rd
, 2009 the shore line is reported to be at 301 miles. At its current state it is
approximately 55 feet from the crest of the damn, or the full point. That is a lot of water missing
from this great lake; the water missing is being diverted as far down as Los Angles to help supply
usable water for the people.
While the need for water is great due to the population increases each year, we need to look
for other avenues to explore. The continued population grow will continue to deplete our water
sources. The ability to refine ocean water for potable use is there, just costly, but the problem is
not refining water, it is our population. Maybe it is time to try and reduce our population by
allowing each couple one child. This is a little drastic but the world depends on what our next step
is, and considering the possibilities of not taking action our next step should be forwards not
backwards.
SCI 275

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Anonymous
Excellent resource! Really helped me get the gist of things.

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